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28 Cards in this Set
- Front
- Back
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Speed of all electromagnetic radiation (c) |
3.00 x 10{8} |
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A shorter wavelength means a higher _______ |
frequency |
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Formula for finding wavelength and frequency |
c=wavelength x frequency |
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Planck's Theory |
Energy that is emitted or absorbed by any object is restricted to pieces of particular sizes |
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A piece of energy = a ___________ |
quantum |
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Light quanta = ______ |
photons |
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h = ________ ____________ |
Planck's constant (6.6262 x 10{-34} J-S) |
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Formula for finding energy in one photon |
E=hv |
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Why is an electric current produced? |
Electrons are attracted to the positive electrode, photos eject electrons from metal |
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Compton Effect |
A photon can collide with an electron and impart energy to it |
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Light travels like a __________ but interacts with matter like a _____________ |
wave, particle |
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Continuous Spectrum & Sources |
Has all the wavelengths in a range, without any gaps. Sources: sun, incandescent light bulbs |
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Line Spectrum & Sources |
Contains only certain colors, or wavelengths, with gaps between them. Sources: elements in a flame, fluorescent lights, neon lights |
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All elements emit light- called an _______ ________ |
Emission spectrum |
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Ground state |
Where the electron is normally found |
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Excited state |
Higher energy state |
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Bohr model of the atom- _________ ________ |
concentric circles |
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In orbitals, electron ______ is shown by shading |
Density |
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Contour orbitals |
Electron found inside line 90% of the time |
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# of orbitals in s sublevel |
1 |
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# of orbitals in p sublevel |
3 |
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# of orbitals in d sublevel |
5 |
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# of orbitals in f sublevel |
7 |
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Pauli Exclusion Principle |
An orbital can contain a maximum of 2 electrons, and they must have opposite spins |
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s sublevel is _____ shaped |
sphere |
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p sublevel is ________ shaped |
dumbell |
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Hunds Rule |
Sublevels with orbitals of equal energy get the max # of unpaired electrons |
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Aufbau Principle |
Electrons occupy lowest energy orbitals/sublevels available |
